3 years ago

If a = 4 and b = 2, what is the value of the following expression?

Mathematics

2 answers:

romanna [79]3 years ago

4 0

The correct answer is D. 30.

Nadya [2.5K]3 years ago

3 0

Answer:

D) 30

Step-by-step explanation:

3(a + 4b)-6 = 3 ( 4 + 4*2) - 6

= 3( 4+8 ) - 6

= 3*12 - 6

= 36 - 6 =30

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The graph shows two linear functions, f and g. Which formula BEST represents g(x)?

Softa [21]

Answer: C

g(x) = 1/2 f (x)

Step-by-step explanation:

3 0

3 years ago

will got 17 out of 25 questions correct on his driving test what percent correct did he get on the test?

Natalija [7]

Answer:

68%

Step-by-step explanation:

$\frac{17}{25} = \frac{68}{100}$
$\frac{68}{100}$ = 68%

I hope this helps!

5 0

3 years ago

Read 2 more answers

27^x = 9^x − 4 Question 1 options: x = 8 x = 4 x = −4 x = −8

Mariulka [41]

Answer:

x = -8

Step-by-step explanation:

Given the equation:

$27^x=9^{x-4}$

Note that

$27=3^3\\ \\9=3^2,$

then

$27^x=(3^3)^x=3^{3x}\\ \\9^{x-4}=(3^2)^{x-4}=3^{2(x-4)}$

Rewrite the equation as

$3^{3x}=3^{2(x-4)},$

then

$3x=2(x-4)\\ \\3x=2x-8\\ \\3x-2x=-8\\ \\x=-8$

4 0

3 years ago

How do you write an equation of a line that is parallel line to y=8x-8 through the point (5,2)

Andreyy89

Parallel means that the two equations have the same slope,

so we have y = 8x + b so far.

Then we can just apply the slope to the given point by taking the y value and decreasing it by 40, due to the x value being 5

So in short, the equation that runs parallel to y = 8x-8 and intersect the point (5,2) is y = 8x -38

8 0

3 years ago

Written as a simplified polynomial in standard form, what is the result when (x-8)^2

neonofarm [45]

Answer:

26x-67-x²

Step-by-step explanation:

We are given

$(10x - 3) - (x - 8) {}^{2}$

Expanding (x-8)²=x²-16x+64

10x-3-(x²-16x+64)

10x-3-x²+16x-64

26x-67-x²

3 0

2 years ago